摩擦电喷镀镍基纳米氧化铝镀层组织及性能研究  

Study on Structure and Properties of Nickel-based Nano-Al_2O_3 Coatings by Friction and Spray Electro-deposition

作　　者：陈晓磊[1] 吴斌[1] 於陈浩[1] 谢凤宽[2] 梁志杰[2] 

机构地区：[1]解放军炮兵学院无人机和机械工程系,合肥230031 [2]装甲兵工程学院装备再制造工程系,北京100072

出　　处：《材料导报（纳米与新材料专辑）》2008年第1期180-182,187,共4页

摘　　要：制备出摩擦电喷镀n-Al_2O_3/Ni镀层与电刷镀n-Al_2O_3/Ni镀层。用SEM、XRD和ΠMT-3显微硬度计观测出摩擦和喷射使得镀层更平整、细腻,且复合含量、硬度与刷镀层相比有明显提高;2种镀层在5%H_2SO_4溶液和5%H_2SO_4+3.5%NaCl溶液中腐蚀,通过公式v=△w/st=A·i_(corr)/(nF)推出摩擦电喷镀n-Al_2O_3/Ni镀层腐蚀速率最小。n-Al2O3/Ni coatings are prepared by friction ＆ spray electro-plating and brush electro-plating separately. Friction and spraying result in smooth and nice coatings, and improve the hardness and compound content observed by SEM, XRD and IIMT-3 hardness-testing device. Two kinds of coatings are corroded in 5 % Hz SO4 solution and 5% H2 SO4 ＋3.5 % NaCl solution, and the corrosion rate of n-Al2O3/Ni coating by friction and spray electro-plating is smallest according to v=△w/st=A·icorr/（nF）.

关 键 词：摩擦 喷射 复合镀层 晶粒 位错 腐蚀 

分 类 号：TQ153[化学工程—电化学工业] TQ133.1